This paper discusses various methods for assessing group differences in academic achievement using only the ordinal content of achievement test scores. Researchers and policymakers frequently draw conclusions about achievement differences between various populations using methods that rely on...

The cost of shelter is a large portion of household expenditures and therefore shelter has a large weight in inflation measurement. Since rich and poor households tend to make different housing and location choices, does the shelter component of inflation differ across the income distribution? I...

Large and growing income differentials in the US have generated a mounting interest in income inequality among economists. The average income in the highest quintile of households increased by about 70 percent in real terms from 1985 to 2019, whereas the average income of the lowest quintile...